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Astral

astral.sh

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Spec score 8.1 #5 of 27 in Python Package Managers

What it is

Astral makes open-source tools for Python development, including Ruff, a linter, and uv, a package and project manager. Both are written in Rust. uv brings together project management, a universal lockfile, script execution, Python version management, tool installation, workspaces and a pip-compatible interface. Astral describes that interface as providing a 10–100x speedup over pip. uv supports macOS, Linux and Windows. Its documented integrations include Docker, Jupyter, marimo, GitHub Actions, GitLab CI/CD, pre-commit, PyTorch, FastAPI, Bazel, artifact registries, Renovate, Dependabot, AWS Lambda and Coiled. Astral says its tools are permissively licensed and free forever. It describes security controls for workflows and releases, including read-only default workflow permissions, full-length commit-SHA pinning, Trusted Publishing, Sigstore attestations and immutable GitHub releases. Documentation directs users to its Discord community for support. The separate pyx package registry offers optimized installs and other package-management features, but is no longer accepting new signups. Astral has announced an agreement to join OpenAI as part of the Codex team.

Spec sheet

Integrations
uv documentation lists integrations for Docker, Jupyter, marimo, GitHub Actions, GitLab CI/CD, pre-commit, PyTorch, FastAPI, Bazel, artifact registries, Renovate, Dependabot, AWS Lambda and Coiled.Read 1 Oct 2026 · docs.astral.sh
Support
Astral's documentation directs users to join its Discord community for support.Read 1 Oct 2026 · docs.astral.sh
Mission
Astral builds high-performance developer tools to make the Python ecosystem more productive.Read 1 Oct 2026 · astral.sh
Open source
Astral says its tools are open source and permissively licensed.Read 1 Oct 2026 · astral.sh
Ownership
Astral announced an agreement to join OpenAI as part of the Codex team.Read 1 Oct 2026 · astral.sh
pyx availability
The pyx Python-native package registry is no longer accepting new signups.Read 1 Oct 2026 · astral.sh
pyx features
pyx provides optimized installs from PyPI, PyTorch and private sources, compliance filtering, uv integration, seamless authentication and GPU-aware package selection.Read 1 Oct 2026 · astral.sh
Release security
Astral says it uses Trusted Publishing, Sigstore attestations, immutable GitHub releases and checksum-embedded standalone installers where possible.Read 1 Oct 2026 · astral.sh
Ruff
Ruff is an extremely fast Python linter written in Rust.Read 1 Oct 2026 · astral.sh
Security controls
Astral says it forbids dangerous GitHub Actions triggers, uses full-length commit-SHA pinning, defaults workflow permissions to read-only and isolates deployment secrets.Read 1 Oct 2026 · astral.sh
Supported systems
uv supports macOS, Linux and Windows.Read 1 Oct 2026 · docs.astral.sh
uv
uv is an extremely fast Python package and project manager written in Rust.Read 1 Oct 2026 · docs.astral.sh
uv capabilities
uv provides project management, a universal lockfile, script execution, Python version management, tool installation, workspaces and a pip-compatible interface.Read 1 Oct 2026 · docs.astral.sh
uv speed
The uv pip interface is described as providing a 10-100x speedup over pip.Read 1 Oct 2026 · docs.astral.sh

Plans and prices

Open-source Astral tools Free Ruff, uv and ty · free forever · open source · permissively licensed Read 1 Oct 2026 · astral.sh

Every Astral plan and price →

Strong points and limits

Strong points

  • Ruff and uv are free and open source.
  • uv includes project and Python version management.
  • uv supports macOS, Linux and Windows.
  • Documentation lists integrations including Docker and GitHub Actions.
  • Astral describes security controls for workflows and releases.

Limits

  • The pyx registry no longer accepts new signups.
  • Support is directed through the Discord community.

Who it suits

Astral suits Python developers looking for free, permissively licensed tools for linting and package or project management. uv supports macOS, Linux and Windows and documents integrations with developer tools and services.

Verdict

Astral offers a free Python linter and a package and project manager with broad listed capabilities. Developers should note the Discord support route and that pyx is closed to new signups.

Where Specifiction places it

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